Coil bobbin



FIG. 1 is a front elevation view of the coil bobbin.

FIG. 2 is a rear elevation view.

FIG. 3 is a right side elevation view.

FIG. 4 is a left side elevation view.

FIG. 5 is a top plan view.

FIG. 6 is a bottom plan view.

FIG. 7 is a cross-sectional view, as taken along line 7—7 of FIG. 4;and,

FIG. 8 is a perspective view.

The ornamental design for a coil bobbin, as shown and described.